Below are the PM operations that have associated feasibility rules, grouped by GCD type. Each operation is accompanied by necessary conditions for the operation’s feasibility. aPriori checks the operations in the order specified by the operation templates.
See Trim Machine Selection for information on Trim operation feasibility, which affects tooling cost as well as required clamp force.
Curved Surface
As Cast
Surface area is nonzero.
Tolerance is not too small to cast, if secondary machining is disabled.
GCD does not lie on an axigroove.
Curved Wall
As cast
Surface area is nonzero.
Tolerance is not too small to cast, if secondary machining is disabled.
GCD does not lie on an axigroove.
Void and ComboVoid
All Operations
Box width is not too small to cast (that is, diameter is greater than or equal to the plant variable minDieCastableHoleDia).
Box height is not too small to cast (that is, diameter is greater than or equal to the plant variable minDieCastableHoleDia).
Multistep Hole
All operations
Diameter is not too small to cast (that is, diameter is greater or equal to than the plant variable minPermanentMoldHoleDia).
Tolerance is not too tight to cast, if secondary machining is disabled.
Hole is not threaded, if secondary machining is disabled.
Planar Face
As Cast
Surface area is nonzero.
Tolerance is not too small to cast, if secondary machining is disabled.
Simple Hole
All operations
Diameter is not too small to cast (that is, diameter is greater or equal to than the plant variable minPermanentMoldHoleDia).
Tolerance is not too tight to cast, if secondary machining is disabled.
Hole is not threaded, if secondary machining is disabled.